Zohran Mamdani, a 33-year-old democratic socialist and state legislator, has delivered a seismic political upset in New York City by winning the Democratic mayoral primary, defeating veteran politician and three-time former governor Andrew Cuomo.

In a statement to supporters after the announcement of results, Mamdani evoked the words of Nelson Mandela, saying, “It always seems impossible until it’s done. My friends, it is done. And you are the ones who did it. I am honored to be your Democratic nominee for the Mayor of New York City.”

Mamdani’s grassroots campaign, which started with just one percent in the polls in February, steadily gained momentum as he reached out to working-class voters, younger Americans, and the city’s sizeable Muslim community. His victory is being hailed by analysts as a sharp rebuke to establishment Democrats and a sign of growing progressive influence in the party.

If elected in November, Mamdani will become New York City’s first Muslim mayor.

His campaign emphasised affordable housing, police accountability, climate action, and universal healthcare—positions that resonated with a base increasingly disillusioned by conventional Democratic leadership. His outreach extended deep into the city’s many mosques and community centres, where he engaged one-on-one with voters, highlighting both his policies and personal identity.

Political strategist Andrew Koneschusky, a former Democratic Senate aide, said the result could signal broader shifts in the party ahead of the 2026 midterm elections. “Voters are clearly tired of the same old faces and are willing to support new voices who reflect their struggles,” he said.

The victory comes amid ongoing debates within the Democratic Party following Kamala Harris’s 2024 presidential loss to Donald Trump, which some interpreted as a rejection of identity-driven politics. Mamdani, however, leaned into his identity, using it to unite and mobilize traditionally underrepresented communities.

Observers say Mamdani’s rise is reminiscent of other progressive breakthroughs, such as Alexandria Ocasio-Cortez’s 2018 congressional win. His win is expected to inspire similar campaigns across the country.

Cuomo, though yet to deliver a concession speech, issued a brief statement acknowledging the outcome and said, “The voters have spoken.”